Solenoid valve in the selection of Notes when the

 First, the applicability of

     Pipe in fluid must be selected solenoid valve series models in the calibration of the media in line.

     Fluid temperature must be less than the calibration temperature selection of solenoid valves.

     Solenoid valve to allow liquid viscosity generally 20CST less than 20CST should be specified.

     Working pressure, maximum pressure pipeline should be chosen in less than 0.04MPa, such as ZS, 2W, ZQDF, ZCM series direct-acting type and sub-step direct-acting type; minimum working pressure is greater than 0.04MPa may use Pilot - (Differential) solenoid valve; maximum working pressure should be less than the maximum calibrated pressure solenoid valve; generally are one-way solenoid valve work, they should pay attention to whether there is anti-pressure, if installed check valve.

     Fluid cleanliness is not high when the solenoid valve installed before the filter, solenoid valve on the media in general cleanliness requirements better.

     Note that flow aperture and take over the caliber; solenoid valve generally only switch 2 control; conditions permit, please install the bypass pipe, easy maintenance; there is water hammer phenomenon, the solenoid valve to customize the opening and closing time adjustment.

     Pay attention to environmental effects of temperature on the electromagnetic valve

     Supply current and power consumption should be based on output capacity selection, supply voltage generally allowed ± 10% or so, we must note that the higher the value of the exchange-start VA.

Second, the reliability of

     Normally closed solenoid valve is divided into two kinds, and always open; general use Normally closed type, power open, power off; but when you open a long time is very short closed to regular use of open-type.

     Life test, the factory are generally type pilot projects, specifically China has not yet solenoid valve professional standards, so choose carefully when the solenoid valve manufacturers.

     Action time is very short at higher frequencies generally select direct-acting type, large-caliber use rapid serial.

3, security

     General solenoid valve is not waterproof, the conditions are not allowed to use water when you type, factories can be customized.

     The maximum calibration of nominal pressure solenoid valve must be more than the maximum pressure inside the pipe, otherwise life will be shortened or produce other unforeseen situations.

     Corrosive liquids should use all stainless steel type, strong corrosive fluids should choose plastic Wang (SLF) solenoid valve.

     An explosive environment must use the appropriate explosion-proof products.

4, economy

     There are many solenoid valve can be generic, but meet the above three points should be chosen on the basis of the most economical product. 

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